Elastic sealing valve, liquid pump, and container with liquid pump

Abstract

The present invention discloses an elastic sealing valve, a liquid pump, and a container with a liquid pump, wherein the elastic sealing valve includes a plastic spring and a sealing and drainage member, wherein the plastic spring includes an upper maintaining portion, a lower maintaining portion, and at least one elastic portion, wherein the elastic portion extends bendably from the upper maintaining portion to the lower maintaining portion, wherein the sealing and drainage member has a drainage channel and a through hole communicating with the drainage channel, and wherein the plastic spring is held in the drainage channel of the sealing and drainage member. The whole of the elastic sealing valve is made of plastic, facilitating the recycling of the liquid pump without disassembly.

Description

Technical Field

[0001] The present invention relates to the field of liquid pumps, and particularly to an elastic sealing valve, a liquid pump, and a container equipped with a liquid pump. Background Art

[0002] Pressurized liquid pumps are not only applied to liquid storage bottles containing liquids such as shampoo, body wash, or disinfectant, facilitating users to quantitatively dispense the liquid in the bottle by pressing, but also applied to perfume bottles, moisturizing liquid bottles, medicine bottles, etc. By pressing the liquid pump, the liquid in the bottle can be atomized and ejected.

[0003] Refer to Figure 1 , the existing liquid pump 100P includes a pressing cap 10P, a liquid outlet pipe 20P communicating with the liquid outlet of the pressing cap 10P, an assembly shell 30P, a pump body 40P, a hollow plunger 50P, a piston 60P, a spring 70P, a ball valve 80P, and a liquid inlet pipe 90P that can be connected to the liquid storage chamber 401P of the pump body 40P. The piston 60P is sleeved on the hollow plunger 50P in a manner that blocks the flow hole 501P of the hollow plunger 50P. The hollow plunger 50P is installed on the liquid outlet pipe 20P in a manner that is connected to the liquid outlet pipe 20P. The spring 70P is held between the hollow plunger 50P and the pump body 40P. The ball valve 80P is movably held at the liquid inlet 402P of the pump body 40P. The pump body 40P is installed in the assembly shell 30P, and the assembly shell 30P is detachably installed on a liquid storage bottle 200P, so that the liquid in the liquid storage space 201P of the liquid storage bottle 200P can be taken by using the liquid pump 100P. Specifically, when pressing down the pressing cap 10P, the ball valve 80P blocks the liquid inlet 402P of the pump body 40P, the spring 70P is compressed, the flow hole 501P of the hollow plunger 50P is exposed, the pressure in the liquid storage chamber 401P of the pump body 40P increases, and the liquid in the liquid outlet chamber is pressed into the liquid outlet pipe 20P from the flow hole 501P of the hollow plunger 50P and flows out from the liquid outlet of the pressing cap 10P. After canceling the force on the pressing cap 10P, the spring 70P releases elastic potential energy, driving the hollow plunger 50P, the piston 60P, the liquid outlet pipe 20P, and the pressing cap 10P to return to their initial positions. The pressure in the liquid storage chamber 401P of the pump body 40P increases, the ball valve 80P moves upward, the liquid inlet 402P of the pump body 40P opens, and the liquid inlet pipe 90P guides the liquid in the liquid storage bottle 200P into the liquid storage chamber 201P of the pump body 40P.

[0004] Although the existing liquid extraction pump 100P is convenient for liquid extraction, its recycling is relatively difficult. Specifically, the spring 70P of the liquid extraction pump 100P is made of metal material, the ball valve 80P is made of glass material, and other parts are made of plastic material. During the recycling process, the liquid extraction pump 100P needs to be disassembled, and then classified according to metal parts, glass parts and plastic parts. The classified parts are then melted, injection molded and reassembled according to their categories. Since the materials are different, the process requirements are also different, and the required mechanical equipment is also different. In this way, not only a large amount of manpower is required for the disassembly operation of the liquid extraction bottle, but also multiple sets of equipment need to be purchased for subsequent recycling, which greatly increases the recycling cost of the liquid extraction pump 100P, is not conducive to promoting the recycling of the discarded liquid extraction pump 100P, and is even less conducive to environmental protection and resource utilization rate. Summary of the Invention

[0005] An object of the present invention is to provide an elastic sealing valve, a liquid pump and a container with a liquid pump, wherein the container is a fully plastic structure and can be directly recycled without disassembly, saving the recycling cost and being conducive to implementing the environmental protection concept.

[0006] Another object of the present invention is to provide an elastic sealing valve, a liquid pump and a container with a liquid pump, wherein the elastic sealing valve provides a plastic spring to replace the metal spring of the existing liquid extraction pump, which is more conducive to the recycling and reuse of the liquid pump.

[0007] Another object of the present invention is to provide an elastic sealing valve, a liquid pump and a container with a liquid pump, wherein the liquid pump provides an inlet valve, and the inlet valve is made of plastic material. The plastic inlet valve replaces the glass ball valve of the existing liquid extraction pump, which is more conducive to the recycling and reuse of the liquid pump.

[0008] Another object of the present invention is to provide an elastic sealing valve, a liquid pump and a container with a liquid pump, wherein the elastic sealing valve provides a sealing and drainage member, and the plastic spring is detachably installed on the sealing and drainage member, which is convenient for separately replacing the sealing and drainage member or the plastic spring.

[0009] Another object of the present invention is to provide an elastic sealing valve, a liquid pump and a container with a liquid pump, wherein the plastic spring and the sealing and drainage member are integrally formed, and the elastic sealing valve is an integral structure, which simplifies the assembly process, is conducive to improving the assembly efficiency, and shortens the assembly cycle of the liquid pump.

[0010] According to one aspect of the present invention, the present invention provides an elastic sealing valve, which includes:

[0011] A sealed drainage member, wherein the sealed drainage member has a diversion channel and a through hole communicating with the diversion channel; and

[0012] A plastic spring, wherein the plastic spring includes an upper maintaining portion, a lower maintaining portion, and at least one elastic portion, wherein the elastic portion extends curvedly from the upper maintaining portion to the lower maintaining portion, and wherein the plastic spring is held in the diversion channel of the sealed drainage member.

[0013] According to an embodiment of the present invention, the plastic spring is detachably mounted in the diversion channel of the sealed drainage member.

[0014] According to an embodiment of the present invention, the plastic spring and the sealed drainage member are integrally formed.

[0015] According to an embodiment of the present invention, the sealed drainage member includes a maintaining portion, a closed portion integrally extending upward from the edge of the maintaining portion, a diversion portion extending downward from the maintaining portion, and a sealing projection extending upward from the middle of the maintaining portion, wherein the diversion channel is formed in the diversion portion, and the through hole is formed in the maintaining portion.

[0016] According to an embodiment of the present invention, the sealed drainage member further includes a guiding column, wherein the guiding column extends downward from the maintaining portion, and the plastic spring is held in the diversion channel in such a manner that it is disposed on the guiding column.

[0017] According to an embodiment of the present invention, the sealed drainage member has at least one notch, and the notch is formed in the closed portion.

[0018] In another aspect of the present invention, the present invention provides a liquid pump, which includes:

[0019] An assembly seat, wherein the assembly seat has an assembly channel;

[0020] A pump body, wherein the pump body has a liquid storage chamber and a liquid inlet communicating with the liquid storage chamber, and the pump body is disposed on the assembly seat;

[0021] An outlet pipe, wherein the outlet pipe has an outlet channel, the outlet pipe is movably held in the assembly channel of the assembly seat, and the outlet pipe is disposed in the liquid storage chamber of the body;

[0022] A pressing cap, wherein the pressing cap has a guiding channel and an outlet communicating with the guiding channel, and the pressing cap is held above the assembly seat in such a manner that it is disposed at the end of the outlet pipe, and the guiding channel of the pressing cap is communicated with the outlet channel of the outlet pipe;

[0023] A liquid inlet pipe, wherein the liquid inlet pipe has a liquid inlet channel, and the liquid inlet pipe is arranged on the pump body, and the liquid inlet channel of the liquid inlet pipe can be communicated with the liquid storage cavity of the pump body;

[0024] A liquid inlet valve, wherein the liquid inlet valve is movably arranged at the liquid inlet of the pump body; and

[0025] An elastic sealing valve, wherein the elastic sealing valve includes a plastic spring and a sealing and guiding member, the plastic spring includes an upper maintaining part, a lower maintaining part and at least one elastic part, the elastic part extends curvedly from the upper maintaining part to the lower maintaining part, the sealing and guiding member has a guiding channel and a through hole communicated with the guiding channel, the plastic spring is held in the guiding channel of the sealing and guiding member, the elastic sealing valve is arranged in the liquid storage cavity of the pump body, and the elastic sealing valve is movably held below the liquid outlet pipe.

[0026] According to an embodiment of the present invention, the plastic spring of the elastic sealing valve is detachably installed in the guiding channel of the sealing and guiding member.

[0027] According to an embodiment of the present invention, the plastic spring and the sealing and guiding member of the elastic sealing valve are integrally formed.

[0028] According to an embodiment of the present invention, the sealing and guiding member of the elastic sealing valve includes a maintaining part, a closing part integrally extending upward from the edge of the maintaining part, a guiding part extending downward from the maintaining part, and a sealing protrusion extending upward from the middle of the maintaining part, the guiding channel is formed in the guiding part, and the through hole is formed in the maintaining part.

[0029] According to an embodiment of the present invention, the sealing and guiding member of the elastic sealing valve further includes a guiding column, the guiding column extends downward from the maintaining part, and the plastic spring is held in the guiding channel in such a way that it is arranged on the guiding column.

[0030] According to an embodiment of the present invention, the pump body has a pressure relief port, the liquid outlet pipe includes a fitting part and a liquid outlet part integrally extending upward from the fitting part, the liquid outlet channel is formed in the liquid outlet part, the elastic sealing valve is held below the liquid outlet pipe in such a way that the sealing protrusion can seal the liquid outlet of the liquid outlet part, and a temporary liquid cavity and a notch are formed between the fitting part of the liquid outlet pipe and the closing part of the sealing and guiding member, the notch communicates the temporary liquid cavity and the liquid storage cavity of the pump body, and during the process that the liquid outlet pipe is driven to move downward relative to the pump body, the notch can communicate the temporary liquid cavity and the pressure relief port.

[0031] According to an embodiment of the present invention, the fitting of the liquid outlet pipe is held above the closing part of the sealed drainage part at intervals, and a temporary liquid cavity and a notch are formed between the fitting and the closing part.

[0032] According to an embodiment of the present invention, the liquid outlet pipe has at least one notch, and the notch is formed in the lower part of the fitting.

[0033] According to an embodiment of the present invention, the sealed drainage part of the elastic sealing valve has at least one notch, and the notch is formed in the closing part.

[0034] According to an embodiment of the present invention, the liquid inlet valve includes a fixing part, at least one connecting part and a shielding part. The fixing part has a liquid flowing channel. The shielding part is held in the liquid flowing channel of the fixing part. The connecting part extends from the inner wall of the fixing part to the shielding part, and at least one liquid flowing port is formed between the fixing part, the connecting part and the shielding part. The connecting part has elasticity to allow the shielding part to be movably held in the liquid flowing channel of the fixing part, so as to seal the liquid inlet or expose the liquid inlet.

[0035] According to an embodiment of the present invention, the liquid inlet valve is made by injection molding.

[0036] In another aspect of the present invention, the present invention provides a liquid-containing container with a liquid pump, which includes:

[0037] A container body, wherein the container body has a liquid-containing space; and

[0038] A liquid pump, wherein the liquid pump has a pump body, a liquid outlet pipe, a pressing cap, a liquid inlet pipe, a liquid inlet valve and an elastic sealing valve. The liquid pump includes an assembly seat, and the assembly seat has an assembly channel. The pump body has a liquid storage cavity and a liquid inlet communicating with the liquid storage cavity. The pump body is disposed on the assembly seat, and the assembly seat is disposed on the container body. The liquid outlet pipe has a liquid outlet channel, and the liquid outlet pipe is movably held in the assembly channel of the assembly seat and is disposed in the liquid storage cavity of the body. The pressing cap has a guiding channel and a liquid outlet communicating with the guiding channel. The pressing cap is held above the assembly seat in a manner of being disposed at the end of the liquid outlet pipe, and the guiding channel of the pressing cap communicates with the liquid outlet channel of the liquid outlet pipe. The liquid inlet pipe has a liquid inlet channel, and the liquid inlet pipe is disposed on the pump body. The liquid inlet channel of the liquid inlet pipe can communicate with the liquid storage cavity of the pump body, and the liquid inlet channel of the liquid inlet pipe communicates with the liquid storage space of the container body. The liquid inlet valve is movably disposed at the liquid inlet of the pump body. The elastic sealing valve includes a plastic spring and a sealing and guiding member. The plastic spring includes an upper maintaining portion, a lower maintaining portion and at least one elastic portion. The elastic portion extends curvedly from the upper maintaining portion to the lower maintaining portion. The sealing and guiding member has a guiding channel and a through hole communicating with the guiding channel. The plastic spring is held in the guiding channel of the sealing and guiding member. The elastic sealing valve is disposed in the liquid storage cavity of the pump body and is movably held below the liquid outlet pipe. Description of the Drawings

[0039] Figure 1 It is a schematic structural diagram of an existing liquid extraction pump.

[0040] Figure 2 It is a schematic perspective view of a liquid pump according to a preferred embodiment of the present invention.

[0041] Figure 3 It is a schematic cross-sectional view of the liquid pump according to the above preferred embodiment of the present invention.

[0042] Figure 4 It is a schematic exploded view of the liquid pump according to the above preferred embodiment of the present invention.

[0043] Figure 5A It is a schematic structural diagram of the liquid inlet valve of the liquid pump according to the above preferred embodiment of the present invention.

[0044] Figure 5BIt is a schematic structural diagram of a deformation implementation of the liquid inlet valve of the liquid pump according to the above-mentioned preferred embodiment of the present invention.

[0045] Figure 6A It is a schematic diagram of a stage in the liquid extraction process of a liquid-containing container with a liquid pump according to the above-mentioned preferred embodiment of the present invention.

[0046] Figure 6B It is a schematic diagram of a stage in the liquid extraction process of the liquid-containing container with a liquid pump according to the above-mentioned preferred embodiment of the present invention.

[0047] Figure 6C It is a schematic diagram of a stage in the liquid extraction process of the liquid-containing container with a liquid pump according to the above-mentioned preferred embodiment of the present invention.

[0048] Figure 6D It is a schematic diagram of a stage in the liquid extraction process of the liquid-containing container with a liquid pump according to the above-mentioned preferred embodiment of the present invention.

[0049] Figure 7 It is a schematic exploded view of the liquid pump according to another preferred embodiment of the present invention.

[0050] Figure 8 It is a schematic cross-sectional view of the liquid pump according to another preferred embodiment of the present invention.

[0051] Figure 9 It is a schematic cross-sectional view of the liquid pump according to another preferred embodiment of the present invention. Detailed implementation manners

[0052] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present invention can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0053] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0054] It is understood that the term "a" should be construed as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as a limitation on the number.

[0055] Referring to the accompanying drawings of the specification Figures 2 to 6D , a container 1000 with a liquid pump according to a preferred embodiment of the present invention will be described hereinafter. The container 1000 includes a liquid pump 100 and a container body 200. The liquid pump 100 is detachably mounted on the container body 200 for taking the liquid in a liquid storage space 201 of the container body 200. The liquid pump 100 is entirely made of plastic. After the liquid in the liquid storage space 201 of the container body 200 is consumed, the liquid pump 100 and the container body 200 are separated, and the liquid pump 100 can be recycled and reused as a whole without being disassembled. In this way, it is not necessary to spend manpower and material resources on disassembly, classification, and classified recycling, which is beneficial to improving the utilization rate of resources and protecting the environment.

[0056] Specifically, referring to Figures 2 to 4 , the liquid pump 100 includes a pressing cap 10, an assembly seat 20, a pump body 30, a liquid outlet pipe 40, an elastic sealing valve 50, an inlet valve 60, and an inlet pipe 70. The pressing cap 10 has a drainage channel 101 and a liquid outlet 102 communicated with the drainage channel 101. The pump body 30 has a liquid storage cavity 301 and an inlet 302 communicated with the liquid storage cavity 301. The liquid outlet pipe 40 has a liquid outlet channel 401, an upper opening 402, and a lower opening 403. The upper opening 402 and the lower opening 403 are communicated with the liquid outlet channel 401. The elastic sealing valve 50 has a diversion channel 501 and at least one flow hole 502 communicated with the diversion channel 501. The inlet pipe 70 has an inlet channel 701.

[0057] The pressing cap 10 is movably mounted on the upper part of the assembly seat 20, the pump body 30 is mounted on the lower part of the assembly seat 20, and the drainage channel 101 of the pressing cap 10 is communicated with the liquid outlet channel 401 of the liquid outlet pipe 40. The liquid outlet pipe 40 is mounted on the liquid storage cavity 301 of the pump body 30 in such a way that the upper opening 402 is located above the assembly seat 20. The elastic sealing valve 50 and the liquid inlet valve 60 are mounted in the liquid storage cavity 301 of the pump body 30. The elastic sealing valve 50 is located between the liquid outlet pipe 40 and the liquid inlet valve 60, and the elastic sealing valve 50 is movably closed the lower opening 403 of the liquid outlet pipe 40 so that the liquid outlet pipe 40 can be switched between a liquid outlet state and a closed state. The liquid inlet pipe 70 is mounted on the pump body 30 in such a way that the liquid inlet channel 701 is communicated with the liquid inlet port 302 of the pump body 30. The liquid inlet valve 60 is movably mounted on the liquid inlet port 302 of the pump body so that the liquid inlet pipe 70 can be switched between a liquid inlet state and a blocking state.

[0058] In this specific embodiment of the present invention, the assembly seat 20 has an upper assembly space 201, a lower assembly space 202, and an assembly channel 203 communicating the upper assembly space 201 and the lower assembly space 202. The liquid outlet pipe 40 is vertically movably mounted in the assembly channel 203, and the liquid outlet pipe 40 extends from the lower assembly space 202 to the upper assembly space 201. The pressing cap 10 is held in the upper assembly space 201 of the assembly seat 20 by being mounted on the liquid outlet pipe 40. The pump body 30 is mounted in the lower assembly space 202 of the assembly seat 20. The part of the assembly seat 20 forming the lower assembly space 202 is detachably mounted on the container body 200 so that the liquid pump 100 is held in the liquid storage space 201 of the container body 200, and thus the liquid in the solution space 201 can be taken by using the liquid pump 100.

[0059] The liquid outlet pipe 40 includes a fitting 41 and a liquid outlet member 42. The liquid outlet member 42 extends upward from the fitting 41. The liquid outlet member 42 is held in the assembly channel 203 of the assembly seat 20. The fitting 41 fits against the inner wall of the pump body 30 and prevents a gap from being generated between the inner wall of the pump body 30 and the fitting 41. The liquid outlet channel 401, the upper opening 402, and the lower opening 403 are formed in the liquid outlet member 42.

[0060] Specifically, the fitting member 41 includes a holding portion 411, an upper fitting portion 412 extending upward from the edge of the holding portion 411, and a lower fitting portion 413 extending downward from the edge of the holding portion 411, wherein the liquid outlet member 42 extends upward from the holding portion 411. The outer walls of the upper fitting portion 412 and the lower fitting portion 413 of the fitting member 41 are attached to the inner wall of the pump body 30 and prevent a gap from being generated between the inner wall of the pump body 30 and the fitting member 41. Preferably, the holding portion 411, the upper fitting portion 412, and the lower fitting portion 413 of the fitting member 41 are integrally formed.

[0061] The elastic sealing valve 50 includes a sealing and guiding member 51 and a plastic spring 52, wherein the guiding channel 501 and the through hole 502 are formed in the sealing and guiding member 51, and the plastic spring 52 is disposed in the guiding channel 501 of the sealing and guiding member 51.

[0062] The sealing and guiding member 51 of the elastic sealing valve 50 includes a maintaining portion 511, a closing portion 512 extending upward from the edge of the maintaining portion 511, a guiding portion 513 extending downward from the maintaining portion 511, and a sealing protrusion 514, wherein the sealing protrusion 514 extends upward from the middle of the maintaining portion 511. The sealing and guiding member 51 is held below the liquid outlet pipe 40 in such a manner that the sealing protrusion 514 is movably disposed at the lower opening 403 of the liquid outlet pipe 40. The guiding channel 501 is formed in the guiding portion 513, the through hole 502 is formed in the maintaining portion 511, and the plastic spring 52 is held in the guiding channel 501 of the guiding portion 513.

[0063] It is worth mentioning that the specific number of the through holes 502 is not limited, and the number of the through holes 502 can be implemented as one, two, three, four or other numbers. The specific number of the through holes 502 is only an example and cannot limit the content and scope of the liquid pump 100 of the present invention.

[0064] The sealing protrusion 514 includes an extending portion 5141 and a sealing portion 5142, wherein the sealing portion 5142 has a sealing surface 5140, the extending portion 5141 extends upward from the maintaining portion 511, and the sealing portion 5142 extends upward from the extending portion 5141.

[0065] The pump body 30 includes a liquid inlet portion 31, an extension portion 32 integrally extending upward from the liquid inlet portion 31, and a mounting portion 33 integrally extending upward from the extension portion 32. The liquid storage cavity 301 extends from the liquid inlet portion 31 to the mounting portion 33, and the liquid inlet 302 is formed in the liquid inlet portion 31.

[0066] In this specific embodiment of the liquid pump 100 of the present invention, the diameters of the liquid inlet portion 31, the extension portion 32, and the mounting portion 33 of the pump body 30 increase in sequence. The diameter of the closing portion 512 of the sealing and guiding member 51 of the elastic sealing valve 50 is larger than the diameter of the guiding portion 513. The liquid outlet pipe 40 is held in the liquid storage cavity 301 of the pump body 30 in such a way that the fitting member 41 abuts against the mounting portion 33 of the pump body 30. The elastic sealing valve 50 is held in the liquid storage cavity 301 of the pump body 30 in such a way that the closing portion 512 and the guiding portion 513 of the sealing and guiding member 51 respectively abut against the mounting portion 33 and the extension portion 32 of the pump body 30.

[0067] Further, after the liquid outlet pipe 40 is held above the elastic sealing valve 50, a temporary liquid cavity 5401 and a notch 5402 communicating with the temporary liquid cavity 5401 are formed between the lower abutting portion 413 of the fitting member 41 of the liquid outlet pipe 40 and the closing portion 512 of the sealing and guiding member 51 of the elastic sealing valve 50. The mounting portion 33 of the pump body 30 is provided with at least one pressure relief port 3301, and during the downward movement of the liquid outlet pipe 40 and the elastic sealing valve 50, the notch 5402 between the liquid outlet pipe 40 and the elastic sealing valve 50 can be communicated with the pressure relief port 3301 of the mounting portion 33 of the pump body 30.

[0068] Refer to Figures 2 to 4, in a specific embodiment of the present invention, the height of the sealing protrusion 514 is greater than the sum of the heights of the closing portion 512 of the sealing and drainage member 51 and the lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40. When the pressing cap 10 is not subjected to a downward driving force, the plastic spring 52 of the elastic sealing valve 50 is in an initial state. The sealing surface 5140 of the sealing portion 5142 of the sealing protrusion 514 is in contact with the liquid outlet pipe 40, and the sealing protrusion 514 seals the lower opening 403 of the liquid outlet pipe 40. The lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40 is spaced above the closing portion 512 of the sealing and drainage member 51 of the elastic sealing valve 50, and a temporary liquid chamber 5401 and a notch 5402 communicating with the temporary liquid chamber 5401 are formed between the lower fitting portion 413 and the closing portion 512.

[0069] Referring to Figure 8 , in a specific embodiment of the present invention, the notch 5402 is formed in the lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40. For example but not limited to, at least a part of the lower surface of the lower fitting portion 413 is recessed upward to form the notch 5402, or the notch 5402 penetrates the inner wall and the outer wall of the lower fitting portion 413. When the liquid outlet pipe 40 is held above the elastic sealing valve 50, and the sealing surface 5140 of the sealing protrusion 514 of the elastic sealing valve 50 seals the lower opening 403 of the liquid outlet pipe 40, the lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40 is in contact with the upper surface of the closing portion 512 of the sealing and drainage member 51 of the elastic sealing valve 50, and a temporary liquid chamber 5401 is formed between the liquid outlet pipe 40 and the elastic sealing valve 50. Further, during the process of the liquid outlet pipe 40 and the elastic sealing valve 50 being driven to move downward, the notch 5402 formed in the lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40 can correspond to the pressure relief port 3301 of the mounting portion 33 of the pump body 30 and communicate the pressure relief port 3301 and the temporary liquid chamber 5401.

[0070] Referring to Figure 9, in a specific embodiment of the present invention, the notch 5402 is formed in the closed portion 512 of the sealing and drainage member 51 of the elastic sealing valve 50. For example but not limited to, at least a part of the upper surface of the closed portion 512 is recessed downward to form the notch 5402, or the notch 5402 penetrates the inner wall and the outer wall of the closed portion 512. When the liquid outlet pipe 40 is held above the elastic sealing valve 50, and the closing surface 5140 of the sealing protrusion 514 of the elastic sealing valve 50 closes the lower opening 403 of the liquid outlet pipe 40, the lower fitting portion 423 of the fitting member 41 of the liquid outlet pipe 40 fits on the upper surface of the closed portion 512 of the sealing and drainage member 51 of the elastic sealing valve 50, and a temporary liquid cavity 5401 is formed between the liquid outlet pipe 40 and the elastic sealing valve 50. Further, during the process that the liquid outlet pipe 40 and the elastic sealing valve 50 are driven to move downward, the notch 5402 formed in the closed portion 512 of the sealing and drainage member 51 of the sealing valve 50 can correspond to the pressure relief port 3301 of the mounting portion 33 of the pump body 30, and connect the pressure relief port 3301 and the temporary liquid cavity 5401. The flow hole 502 of the elastic sealing valve 50 connects the temporary liquid cavity 5401 and the diversion channel 501.

[0071] Those skilled in the art should understand that the formation position and number of the notch 5402 are only examples and cannot limit the content and scope of the liquid pump 100 of the present invention. For example, the notch 5402 can also be formed simultaneously in the closed portion 512 of the sealing and drainage member 51 and the lower fitting portion 413 of the fitting member 41 of the liquid outlet pipe 40. Moreover, the notch 5402 can be implemented as one, two or more.

[0072] Refer to Figures 6A to 6D, during the liquid extraction process, press down the pressing cap 10. The pressing cap 10 moves downward, and the liquid outlet pipe 40 drives the elastic sealing valve 50 to move downward in a manner that fits against the surface of the elastic sealing valve 50. The plastic spring 52 of the elastic sealing valve 50 deforms, and at least a part of the liquid inlet valve 60 moves downward and fits against the liquid inlet 302 of the pump body 30. At this time, the elastic sealing valve 50 blocks the lower opening 403 of the liquid outlet pipe 40, the liquid outlet pipe 40 is in the closed state, the liquid inlet valve 60 blocks the liquid inlet 302 of the pump body 30, and the liquid inlet pipe 70 is in the blocked state. The liquid in the liquid outlet cavity 301 of the pump body 30 sequentially passes through the diversion channel 501 and the through hole 502 of the elastic sealing valve 50 and then enters the temporary storage liquid cavity 5401. As the pressing cap 10, the liquid outlet pipe 40, and the elastic sealing valve 50 continue to move downward, the pressure in the liquid storage cavity 301 of the pump body 30 gradually increases, the liquid entering the temporary storage liquid cavity 5401 gradually increases, and the pressure in the temporary storage liquid cavity 5401 also gradually increases.

[0073] Continue to press down the pressing cap 10. When the liquid outlet pipe 40 and the elastic sealing valve 50 move to a position where the notch 5402 corresponds to the pressure relief port 3301 of the pump body 30, the notch 5402 connects the pressure relief port 3301 of the pump body 30 and the temporary storage liquid cavity 5401, and the pressure in the temporary storage liquid cavity 5401 is instantly released. The acting force at the moment of pressure release acts on the liquid outlet pipe 40, the elastic sealing valve 50, and the liquid stored in the temporary storage liquid cavity 5401. The elastic sealing valve 50 is driven to move downward, the elastic sealing valve 50 and the liquid outlet pipe 40 are separated, the lower opening 403 of the liquid outlet pipe 40 is exposed, the lower opening 403 connects the liquid outlet pipe 40 and the temporary storage liquid cavity 5401, and the liquid outlet pipe 403 is switched from the closed state to the liquid outlet state. Driven by the acting force generated at the moment of pressure release, the liquid in the temporary storage liquid cavity 5401 enters the liquid outlet channel 401 from the lower opening 403 of the liquid outlet pipe 40, and then passes through the upper opening 402 of the liquid outlet pipe 40 and the guiding channel 101 of the pressing cap 10 and is ejected from the liquid outlet 102 of the pressing cap 10. At the same time, the elastic sealing valve 50 moves downward under the push of the instantaneous acting force, the liquid in the liquid storage cavity 301 of the pump body 30 is squeezed, enters the temporary storage liquid cavity 5401 from the through hole 502 of the sealing valve 50, and then is ejected after passing through the liquid outlet pipe 40 and the pressing cap 10 in sequence. In this way, the liquid in the liquid storage cavity 301 of the pump body 30 can be taken.

[0074] After the pressing force on the pressing cap 10 is withdrawn, the elastic potential energy stored in the plastic spring 52 of the elastic sealing valve 50 is released, driving the elastic sealing valve 50, the liquid outlet pipe 40 and the pressing cap 10 to move upward and return to their initial positions, and the liquid outlet pipe 40 switches from the liquid outlet state to the closed state. During this process, the pressure in the liquid storage cavity 301 of the pump body 30 decreases, and the pressure in the liquid storage space 201 of the liquid storage main body 200 is greater than the pressure in the liquid storage cavity 301 of the pump body 30. Under the action of the pressure difference, the part of the liquid inlet valve 60 that seals the liquid inlet 302 of the pump body 30 is driven to move upward, the liquid inlet 302 is exposed, and the liquid inlet valve 60 switches from the blocking state to the liquid inlet state. The liquid inlet 302 communicates the liquid storage cavity 301 of the pump body 30 and the liquid inlet passage 701 of the liquid inlet pipe 70. The liquid in the liquid storage space 201 of the liquid storage main body 200 enters the liquid storage cavity 301 of the pump body 30 under the action of the pressure difference.

[0075] Referring to Figure 7 , in a specific embodiment of the present invention, the sealing and guiding member 51 of the elastic sealing valve 50 is an integral structure, that is, the maintaining portion 511, the closing portion 512, the guiding portion 513 and the sealing protrusion 514 of the sealing and guiding member 51 are integrally formed. The plastic spring 52 is detachably installed in the guiding cavity 501 of the guiding portion 513. If the plastic spring 52 or the sealing and guiding member 51 is damaged, the plastic spring 52 or the sealing and guiding member 51 can be replaced separately, which is beneficial to reducing the maintenance cost of the elastic sealing valve 50.

[0076] Preferably, the sealing and guiding member 51 further includes a guiding column 515, wherein the guiding column 515 extends integrally downward from the maintaining portion 511, and the plastic spring 52 is installed in the guiding cavity 501 of the guiding portion 513 in a manner of sleeving on the maintaining portion 511. The guiding column 515 guides the movement direction of the plastic spring 52, and the plastic spring 52 deforms along the extending direction of the guiding column 515, avoiding the plastic spring 52 from tilting or deviating when being squeezed, which is not conducive to storing elastic potential energy.

[0077] Optionally, a fitting groove is formed by recessing the lower surface of the maintaining portion 511 upward, and the end of the plastic spring 52 is embedded in the fitting groove of the maintaining portion 511. The plastic spring 52 and the maintaining portion 511 are connected by a clearance fit, and the plastic spring 52 is detachably held in the guiding cavity 501 of the guiding portion 513.

[0078] Optionally, the end of the plastic spring 52 is installed on the lower surface of the maintaining portion 511 by adhesion. The sealing and draining member 51 and the plastic spring 52 can be disassembled by pulling the plastic spring 52 downward. Those skilled in the art should understand that the specific installation manner of the plastic spring 52 and the sealing and draining member 51 is only an example and should not limit the content and scope of the elastic sealing valve 50, the liquid pump 100, and the container 1000 with a liquid pump of the present invention.

[0079] In a specific embodiment of the present invention, the elastic sealing valve 50 is an integral structure, and the plastic spring 52 integrally extends downward from the maintaining portion 511 of the sealing and draining member 51, that is, the plastic spring 52 and the sealing and draining member 51 are integrally formed. In other words, the elastic sealing valve 50 is a prefabricated part. During the installation process, the integral elastic sealing valve 50 can be directly placed into the liquid storage cavity 301 of the pump body 30, which saves the assembly time of the elastic sealing valve 50, improves the assembly efficiency of the elastic sealing valve 50, and shortens the production cycle of the liquid pump 100.

[0080] Referring to Figure 4 , in this specific embodiment of the liquid pump 100 of the present invention, the plastic spring 52 includes an upper maintaining portion 521, a lower maintaining portion 522, and at least one elastic portion 523. The elastic portion 523 is deformably integrally extended from the upper maintaining portion 521 to the lower maintaining portion 522, and a deformation channel 5201 is formed between the upper maintaining portion 521, the lower maintaining portion 522, and the elastic portion 523. The guiding column 515 of the sealing and draining member 51 is held in the deformation channel 5201 of the plastic spring 52. During the process that the upper maintaining portion 521 and the lower maintaining portion 522 are driven to be relatively close to each other, the upper maintaining portion 521 and the lower maintaining portion 522 squeeze the elastic portion 523, and the elastic portion 523 undergoes elastic deformation and stores elastic potential energy. When the external force applied to the upper maintaining portion 521 and the lower maintaining portion 522 is withdrawn, the elastic portion 523 releases the elastic potential energy and returns to the initial state.

[0081] The upper maintaining portion 521, the lower maintaining portion 522, and the elastic portion 523 of the plastic spring 52 can be integrally formed by injection molding, which has low manufacturing cost and fast production cycle, and is beneficial to reducing the production cost of the liquid pump 100 using the plastic spring 52. In addition, the type of plastic material for manufacturing the plastic spring 52 can be selected from polyethylene, polypropylene, or one or more of the materials known to those skilled in the art, and the specific composition of the plastic spring 52 is not limited. The plastic spring 52 is not easily corroded by the solution. Even if the plastic spring 52 is immersed in the solution, it can avoid chemical reactions between the plastic spring 52 and the solution in the liquid pump 100, thereby preventing the solution in the liquid pump 100 from being contaminated.

[0082] Preferably, the elastic portion 523 is implemented as two, and the two elastic portions 523 are spaced and held between the upper maintaining portion 521 and the lower maintaining portion 522 to prevent the plastic spring 52 from being laterally deflected when being squeezed, which is beneficial to improving the stability of the plastic spring 52.

[0083] Preferably, the elastic portion 523 is implemented as one. For example, the elastic portion 523 is a corrugated tubular structure.

[0084] It is worth mentioning that the specific number of the elastic portions 523 is not limited. The elastic portion 523 can be implemented as one, two, three or more. By setting different numbers of the elastic portions 523, the plastic spring can have different elastic force magnitudes to be applicable to different products.

[0085] In some specific embodiments of the present invention, the upper maintaining portion 521 and the lower maintaining portion 522 are parallel, and the upper maintaining portion 521 and the lower maintaining portion 522 are parallel to the horizontal plane. When the upper maintaining portion 521 is pressed by a vertically downward pressing force, the upper maintaining portion 521 is uniformly stressed, which is beneficial to uniformly driving the elastic portion to deform and compress downward. Optionally, the upper maintaining portion 521 and the lower maintaining portion 522 can also be implemented as non-parallel. Optionally, the upper maintaining portion 521 and the lower maintaining portion 522 can also be implemented as having an inclined angle with respect to the horizontal plane. Preferably, the extending directions of the upper maintaining portion 521 and the lower maintaining portion 522 are the same. Optionally, the extending directions of the upper maintaining portion 521 and the lower maintaining portion 522 are different. For example, the upper maintaining portion 521 can be implemented as extending obliquely upward, and the lower maintaining portion 522 can be implemented as extending obliquely downward.

[0086] Preferably, the upper holding part 521 and the lower holding part 522 are implemented as circular. Optionally, the upper holding part 521 and the lower holding part 522 can be implemented as square, triangular, elliptical, rhombic, semi-circular arc, etc. Those skilled in the art should understand that the specific implementation manners of the upper holding part 521 and the lower holding part 522 of the plastic spring 52 are only examples and cannot be used as examples of the content and scope of the present invention.

[0087] The elastic part 523 includes at least one first elastic unit 5231 and at least one second elastic unit 5232, wherein the first elastic unit 5231 and the second elastic unit 5232 are connected end to end, the extending direction of the first elastic unit 5231 is different from the extending direction of the second elastic unit 5232, and the upper holding part 521 and the lower holding part 522 are connected by at least one first elastic unit 5231 and at least one second elastic unit 5232.

[0088] It is worth mentioning that the specific number and real-time manner of the first elastic unit 5231 and the second elastic unit 5232 are not limited. The first elastic unit 5231 and the second elastic unit 5232 can be implemented as one, two, three or more than three in number. The specific number of the first elastic unit 5231 and the second elastic unit 5232 can be the same or different.

[0089] Moreover, the cross-sectional shapes of the first elastic unit 5231 and the second elastic unit 5232 can be implemented as triangular, square, rhombic, circular, semi-circular, elliptical, trapezoidal and other shapes. The cross-sectional shapes of the first elastic unit 5231 and the second elastic unit 5232 can be the same or different. Those skilled in the art should understand that by setting different numbers of the first elastic unit 5231 and the second elastic unit 5232, the plastic spring 52 can have different elasticities to be applicable to different products. The specific implementation manners of the first elastic unit 5231 and the second elastic unit 5232 are only examples and cannot be used as limitations on the content and scope of the plastic spring of the present invention.

[0090] In a specific embodiment of the present invention, the connection position of the elastic part 523 and the upper maintaining part 521 is located on the axis of symmetry of the upper maintaining part 521, which is beneficial to the uniform force received by the two elastic parts 523 when the upper maintaining part 521 moves downward under force, and then the two elastic parts 523 can deform uniformly synchronously. Preferably, the connection positions of the two elastic parts 523 and the lower maintaining part 522 are located on the axis of symmetry of the lower maintaining part 522, which is beneficial to the uniform deformation of the two elastic parts 523 during the process of the upper maintaining part 521 and the lower maintaining part 522 approaching each other. Optionally, the connection position of the elastic part 523 and the upper maintaining part 521 can also be implemented to be distributed on both sides of the axis of symmetry of the upper maintaining part 521. Optionally, the connection position of the elastic part 523 and the lower maintaining part 522 can also be implemented to be distributed on both sides of the axis of symmetry of the lower maintaining part 522. The specific connection positions of the elastic part 523 with the upper maintaining part 521 and the lower maintaining part 522 are only examples and cannot limit the content and scope of the plastic spring 52 of the present invention.

[0091] In a specific embodiment of the present invention, the elastic part 523 extends from the upper maintaining part 521 to the lower maintaining part 522 in a wavy shape. Specifically, the first elastic unit 5231 bends and extends obliquely downward from left to right, and the second elastic unit 5232 bends and extends obliquely downward from right to left. A plurality of the first elastic units 5231 and a plurality of the second elastic units 5232 are connected end to end to form the wavy elastic part 523. The first elastic unit 5231 of one elastic part 523 held between the upper maintaining part 521 and the lower maintaining part 522 corresponds to the second elastic unit 5232 of the other elastic part 523. During the process of the upper maintaining part 521 and the lower maintaining part 522 approaching each other under the action of an external force, the elastic part 523 is compressed and deformed in a manner that the first elastic unit 5231 and the second elastic unit 5232 approach each other.

[0092] In an embodiment of the present invention, the two elastic parts 523 are held between the upper maintaining part 521 and the lower maintaining part 522 in parallel. Optionally, the two elastic parts 523 are connected to the upper maintaining part 521 and the lower maintaining part 522 non-parallelly. Optionally, the first elastic unit 5231 and the second elastic unit 5232 of the elastic part 523 can be implemented to extend linearly, that is, the elastic part 523 can be implemented to extend in a broken line shape.

[0093] In some specific embodiments of the present invention, the two elastic portions 523 extend spirally from the upper maintaining portion 521 to the lower maintaining portion 522. Specifically, one of the two elastic portions 523 held between the upper maintaining portion 521 and the lower maintaining portion 522, the first elastic unit 5231 and the second elastic unit 5232 of the elastic portion 523 respectively correspond to the first elastic unit 5231 and the second elastic unit 5232 of the other elastic portion 523, and the two elastic portions 523 extend crosswise to form a spiral structure. During the process that the upper maintaining portion 521 and the lower maintaining portion 522 approach each other under the action of an external force, the two elastic portions 523 are compressed and deformed in such a way that the second elastic units 5232 approach each other.

[0094] Preferably, the first elastic unit 5231 of the elastic portion 523 extends obliquely downward, and the second elastic unit 5232 of the elastic portion 523 is parallel to the horizontal plane. The second elastic unit 5232 extending in parallel can limit the excessive lateral expansion of the first elastic unit 5231 after being squeezed. Optionally, the first elastic unit 5231 of the elastic portion 523 extends obliquely downward, and the second elastic unit 5232 of the elastic portion 523 also extends obliquely downward, that is, there is an included angle between the extending direction of the second elastic unit 5232 and the horizontal plane. Those skilled in the art should understand that the specific embodiments of the elastic portion 523 extending spirally are only examples and cannot limit the content and scope of the plastic spring 52 of the present invention.

[0095] In a specific embodiment of the present invention, the plastic spring 52 further includes at least one limiting portion 524, wherein the limiting portion 524 is connected to two spaced-apart elastic portions 523, and the extending direction of the limiting portion 524 is different from the extending direction of the elastic portion 523, which is conducive to limiting the degree of deformation of the elastic portion 523, avoiding excessive elastic deformation and fracture of the elastic portion 523, and is conducive to extending the service life of the plastic spring 52.

[0096] Preferably, the limiting portion 524 is disposed at the position where the first elastic unit 5231 and the second elastic unit 5232 of the two elastic portions 523 are connected. Optionally, the limiting portion 524 is disposed on the first elastic unit 5231 of the elastic portion 523. Optionally, the limiting portion 524 is disposed on the second elastic unit 5232 of the elastic portion 523.

[0097] In a specific embodiment of the present invention, the limiting portion 524 of the plastic spring 52 is in an annular shape, and the limiting portion 524 is disposed around the two elastic portions 523. The limiting portion 524 is distributed on both sides of each elastic portion 523. Optionally, the limiting portion 524 of the plastic spring 52 is in a semi-circular arc shape, and the openings of two adjacent limiting portions 1240 face opposite directions. The specific shape of the limiting portion 524 is not limited, and the limiting portion 524 can also be implemented as a broken line shape, a square shape, a diamond shape, a triangle shape, an oval shape, etc.

[0098] Preferably, the limiting portion 524 of the plastic spring 52 is disposed on the two elastic portions 523 in a manner that the extending direction is parallel to the horizontal plane. Optionally, there is an inclined angle between the extending direction of the limiting portion 524 and the horizontal plane.

[0099] It is worth mentioning that the specific implementation manner of the limiting portion 524 of the plastic spring 52 is not limited. The limiting portion 524 of the plastic spring 52 can be implemented in one, two, three or even more than three numbers, and at least one limiting portion 524 is disposed between the two elastic portions 523 at intervals. Preferably, the distances between adjacent limiting portions 524 are equal. Optionally, the distances between adjacent limiting portions 524 are not equal. The cross-sectional shape of the limiting portion 524 of the plastic spring 52 can be implemented as a triangle, a circle, a square, a diamond, a semi-circle, etc. Those skilled in the art should understand that the specific implementation manner of the limiting portion 524 of the plastic spring 52 disclosed in the specification and the drawings is only an example and cannot limit the content and scope of the plastic spring 52 of the present invention.

[0100] Referring to Figure 5A and Figure 5B , the liquid inlet valve 60 includes a fixing portion 61, at least one connecting portion 62 and a shielding portion 63. The fixing portion 61 has a liquid flowing channel 6101, and the shielding portion 63 is held in the liquid flowing channel 6101 of the fixing portion 61. The connecting portion 61 extends from the inner wall of the fixing portion 61 to the shielding portion 63, and at least one liquid flowing port 601 is formed between the fixing portion 61, the connecting portion 62 and the shielding portion 63. The fixing portion 61, the connecting portion 62 and the shielding portion 63 are integrally formed to form the integral liquid inlet valve 60. The connecting portion 62 has elasticity and can allow the shielding portion 63 to move up and down relative to the fixing portion 61 by deforming, so that after the liquid inlet valve 60 is installed on the body 30, the shielding portion 63 can seal the liquid inlet 302 or open the liquid inlet 302.

[0101] The fixing part 61 of the liquid inlet valve 60 is fixed to the inner wall of the liquid inlet part 31 of the pump body 30 in such a way that the shielding part 63 can be sealed to the liquid inlet 302 of the pump body 30. The connecting part 62 of the liquid inlet valve 60 completely covers the liquid inlet 302, and the shielding part 63 can block the communication between the liquid inlet channel 701 of the liquid inlet pipe 70 and the liquid storage cavity 301 of the pump body 30. The shielding part 63 can be driven to move up and down relative to the fixing part 61 to allow liquid to flow or block liquid flow.

[0102] Specifically, when the pressing liquid-taking cap 40 of the liquid pump 1000 is pressed, the piston 13 moves downward, the pressure in the liquid storage cavity 101 increases, and the shielding part 63 of the liquid inlet valve 60 closely adheres to the inner wall of the pump housing 11 under the action of the pressure difference and closes the liquid inlet 302 of the pump body 30. When the external force applied to the pressing liquid-taking cap 40 is removed, the spring 100 drives the piston to move upward, the pressure in the liquid storage cavity 101 decreases, and under the action of the pressure difference, the shielding part 63 of the liquid inlet valve 60 is pushed upward, the shielding part 63 moves upward relative to the fixing part 61, the liquid inlet 302 of the pump body 30 is opened, the liquid flow channel 6101 of the liquid inlet valve 60 communicates with the liquid inlet channel 701 of the liquid inlet pipe 70 and the liquid storage cavity 101 of the pump housing 11, and the liquid in the liquid storage space 201 of the containing container 200 can enter the liquid storage cavity 101 of the pump housing 11 from the liquid inlet channel 701 of the liquid inlet pipe 70.

[0103] In a specific embodiment of the present invention, the fixing part 61 of the liquid inlet valve 60 is installed on the pump housing 11 by means of clearance fit, and the pressure difference formed during the process of driving the piston 13 to move up and down cannot push the fixing part 61 of the liquid inlet valve 60 to move relative to the pump housing 11. Preferably, the fixing part 61 of the liquid inlet valve 60 is fixed to the pump housing 11 by means of adhesion. Optionally, the fixing part 61 of the liquid inlet valve 60 is fixed to the pump housing 11 by means of threaded connection. Those skilled in the art should understand that the specific implementation manner of the liquid inlet valve 60 is only an example and cannot limit the content and scope of the liquid pump of the present invention.

[0104] In this specific embodiment of the liquid pump of the present invention, when the shielding part 63 of the liquid inlet valve 60 is driven to move upward, the connecting part 62 of the liquid inlet valve 60 deforms, and when the shielding part 63 adheres to the inner wall of the pump housing 11, the connecting part 62 returns to its original shape.

[0105] Refer toFigure 5B , the connecting portion 62 of the liquid inlet valve 60 is implemented as one, that is, the shielding portion 63 is only connected to the fixing portion 61 on one side. On the one hand, under the action of the pressure difference, the shielding portion 63 can quickly flip upward or downward relative to the fixing portion 61; on the other hand, when the shielding portion 63 moves upward relative to the fixing portion 61, the flow rate of the liquid passing through the liquid flow channel 6101 is maximized.

[0106] Optionally, the connecting portion 62 of the liquid inlet valve 60 can be implemented as two or more than three in number, and at least two of the connecting portions 62 are distributed at intervals around the shielding portion 63. For example, referring to Figure 5A , the connecting portion 62 is implemented as three, and both ends of the three connecting portions 62 arranged at intervals are respectively connected to the shielding portion 63 and the fixing portion 61. When the shielding portion 63 is driven to move upward, the connecting portion 62 deforms, and the liquid flows through the liquid flow port 601 between the shielding portion 63, the connecting portion 62 and the fixing portion 61. Those skilled in the art should understand that the specific implementation manner of the connecting portion 62 of the liquid inlet valve 60 is only an example and cannot limit the content and scope of the liquid pump of the present invention.

[0107] Those skilled in the art can understand that the above embodiments are only examples, and the features of different embodiments can be combined with each other to obtain embodiments that are easily conceivable according to the content disclosed in the present invention but are not clearly pointed out in the drawings.

[0108] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can be deformed or modified in any way without departing from the above principles.

Claims

1. A liquid pump, characterized in that, Comprising: An assembly base, wherein the assembly base has an assembly channel; A pump body, wherein the pump body has a liquid storage cavity and a liquid inlet communicating with the liquid storage cavity, and the pump body is arranged on the assembly base; A liquid outlet pipe, wherein the liquid outlet pipe has a liquid outlet channel, the liquid outlet pipe is movably held in the assembly channel of the assembly base, and the liquid outlet pipe is arranged in the liquid storage cavity of the pump body; A pressing cap, wherein the pressing cap has a guiding channel and a liquid outlet communicating with the guiding channel, and the pressing cap is held above the assembly base in a manner of being arranged at the end of the liquid outlet pipe, and the guiding channel of the pressing cap is communicated with the liquid outlet channel of the liquid outlet pipe; A liquid inlet pipe, wherein the liquid inlet pipe has a liquid inlet channel, and the liquid inlet pipe is arranged on the pump body, and the liquid inlet channel of the liquid inlet pipe can be communicated with the liquid storage cavity of the pump body; A liquid inlet valve, wherein the liquid inlet valve is movably arranged at the liquid inlet of the pump body; and An elastic sealing valve, wherein the elastic sealing valve comprises a plastic spring and a sealing and guiding member, wherein the plastic spring comprises an upper maintaining portion, a lower maintaining portion and at least one elastic portion, wherein the elastic portion extends curvedly from the upper maintaining portion to the lower maintaining portion, wherein the sealing and guiding member has a guiding channel and a through hole communicating with the guiding channel, wherein the plastic spring is held in the guiding channel of the sealing and guiding member, wherein the elastic sealing valve is arranged in the liquid storage cavity of the pump body, and the elastic sealing valve is movably held below the liquid outlet pipe, wherein the sealing and guiding member comprises a maintaining portion, a closed portion integrally extending upward from the edge of the maintaining portion, a guiding portion extending downward from the maintaining portion, and a sealing protrusion extending upward from the middle of the maintaining portion, wherein the guiding channel is formed in the guiding portion, and the through hole is formed in the maintaining portion.

2. The liquid pump according to claim 1, wherein the plastic spring of the elastic sealing valve is detachably installed in the guiding channel of the sealing and guiding member.

3. The liquid pump according to claim 1, wherein the plastic spring and the sealing and guiding member of the elastic sealing valve are integrally formed.

4. The liquid pump according to claim 1, wherein the sealing and guiding member of the elastic sealing valve further comprises a guiding post, wherein the guiding post extends downward from the maintaining portion, and the plastic spring is held in the guiding channel in a manner of being arranged on the guiding post.

5. The liquid pump according to claim 1, wherein the pump body has a pressure relief port, the liquid outlet pipe includes a fitting part and a liquid outlet part integrally extending upward from the fitting part, wherein the liquid outlet channel is formed in the liquid outlet part, and the elastic sealing valve is held below the liquid outlet pipe in such a manner that the sealing protrusion can seal the liquid outlet of the liquid outlet part, and a temporary liquid chamber and a notch are formed between the fitting part of the liquid outlet pipe and the closing part of the sealing drainage part, wherein the notch communicates the temporary liquid chamber and the liquid storage chamber of the pump body, and during the process that the liquid outlet pipe is driven to move downward relative to the pump body, the notch can communicate the temporary liquid chamber and the pressure relief port.

6. The liquid pump according to claim 5, wherein the fitting part of the liquid outlet pipe is held at a distance above the closing part of the sealing drainage part, and the temporary liquid chamber and the notch are formed between the fitting part and the closing part.

7. The liquid pump according to claim 5, wherein the liquid outlet pipe has at least one notch, and the notch is formed in the lower part of the fitting part.

8. The liquid pump according to claim 5, wherein the sealing drainage part of the elastic sealing valve has at least one notch, and the notch is formed in the closing part.

9. The liquid pump according to any one of claims 1 to 3, wherein the inlet valve includes a fixing part, at least one connecting part and a shielding part, wherein the fixing part has a liquid flowing channel, the shielding part is held in the liquid flowing channel of the fixing part, the connecting part extends from the inner wall of the fixing part to the shielding part, and at least one liquid flowing port is formed between the fixing part, the connecting part and the shielding part, and the connecting part has elasticity to allow the shielding part to be movably held in the liquid flowing channel of the fixing part, so as to seal the inlet or expose the inlet.

10. The liquid pump according to claim 9, wherein the inlet valve is made by injection molding.

11. A liquid-containing container with a liquid pump, characterized in that, Comprising: A container main body, wherein the container main body has a liquid containing space; and A liquid pump, wherein the liquid pump has a pump body, a liquid outlet pipe, a pressing cap, a liquid inlet pipe, a liquid inlet valve and an elastic sealing valve. The liquid pump includes an assembly seat, and the assembly seat has an assembly channel. The pump body has a liquid storage cavity and a liquid inlet communicating with the liquid storage cavity. The pump body is disposed on the assembly seat, and the assembly seat is disposed on the container body. The liquid outlet pipe has a liquid outlet channel, and the liquid outlet pipe is movably held in the assembly channel of the assembly seat and is disposed in the liquid storage cavity of the pump body. The pressing cap has a guiding channel and a liquid outlet communicating with the guiding channel. The pressing cap is held above the assembly seat in a manner of being disposed at the end of the liquid outlet pipe, and the guiding channel of the pressing cap is communicated with the liquid outlet channel of the liquid outlet pipe. The liquid inlet pipe has a liquid inlet channel, and the liquid inlet pipe is disposed on the pump body. The liquid inlet channel of the liquid inlet pipe can be communicated with the liquid storage cavity of the pump body, and the liquid inlet channel of the liquid inlet pipe is communicated with the liquid storage space of the container body. The liquid inlet valve is movably disposed at the liquid inlet of the pump body. The elastic sealing valve includes a plastic spring and a sealing and guiding member. The plastic spring includes an upper maintaining portion, a lower maintaining portion and at least one elastic portion. The elastic portion extends curvedly from the upper maintaining portion to the lower maintaining portion. The sealing and guiding member has a guiding channel and a through hole communicating with the guiding channel. The plastic spring is held in the guiding channel of the sealing and guiding member. The elastic sealing valve is disposed in the liquid storage cavity of the pump body and is movably held below the liquid outlet pipe. The sealing and guiding member includes a maintaining portion, a closed portion integrally extending upward from the edge of the maintaining portion, a guiding portion extending downward from the maintaining portion, and a sealing protrusion extending upward from the middle of the maintaining portion. The guiding channel is formed in the guiding portion, and the through hole is formed in the maintaining portion.

12. The liquid-containing container with a liquid pump according to claim 11, wherein the plastic spring of the elastic sealing valve is detachably installed in the guiding channel of the sealing and guiding member.

13. The liquid-containing container with a liquid pump according to claim 11, wherein the plastic spring and the sealing and guiding member of the elastic sealing valve are integrally formed.

14. The liquid-containing container with a liquid pump according to claim 11, wherein the sealing and guiding member of the elastic sealing valve further includes a guiding post, the guiding post extends downward from the maintaining portion, and the plastic spring is held in the guiding channel in a manner of being disposed on the guiding post.

15. The liquid-containing container with a liquid pump according to claim 11, wherein the pump body has a pressure relief port, the liquid outlet pipe includes a fitting part and a liquid outlet part integrally extending upward from the fitting part, wherein the liquid outlet channel is formed in the liquid outlet part, the elastic sealing valve is held below the liquid outlet pipe in such a manner that the sealing protrusion can seal the liquid outlet of the liquid outlet part, and a temporary liquid chamber and a notch are formed between the fitting part of the liquid outlet pipe and the closed part of the sealing drainage part, wherein the notch communicates the temporary liquid chamber and the liquid storage chamber of the pump body, and during the process that the liquid outlet pipe is driven to move downward relative to the pump body, the notch can communicate the temporary liquid chamber and the pressure relief port.

16. The liquid-containing container with a liquid pump according to claim 15, wherein the fitting part of the liquid outlet pipe is held at intervals above the closed part of the sealing drainage part, and the temporary liquid chamber and the notch are formed between the fitting part and the closed part.

17. The liquid-containing container with a liquid pump according to claim 15, wherein the liquid outlet pipe has at least one notch, and the notch is formed in the lower part of the fitting part.

18. The liquid-containing container with a liquid pump according to claim 15, wherein the sealing drainage part of the elastic sealing valve has at least one notch, and the notch is formed in the closed part.

19. The liquid-containing container with a liquid pump according to any one of claims 11 to 13, wherein the inlet valve includes a fixing part, at least one connecting part and a shielding part, wherein the fixing part has a liquid flow channel, the shielding part is held in the liquid flow channel of the fixing part, the connecting part extends from the inner wall of the fixing part to the shielding part, and at least one liquid flow port is formed between the fixing part, the connecting part and the shielding part, and the connecting part has elasticity to allow the shielding part to be movably held in the liquid flow channel of the fixing part, so as to seal the inlet or expose the inlet.

20. The liquid-containing container with a liquid pump according to claim 19, wherein the inlet valve is made by injection molding.

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